1 files changed, 28 insertions, 0 deletions
diff --git a/searchlib/src/vespa/searchlib/memoryindex/invert_context.h b/searchlib/src/vespa/searchlib/memoryindex/invert_context.h
new file mode 100644
index 00000000000..4d2ebddd647
--- /dev/null
+++ b/searchlib/src/vespa/searchlib/memoryindex/invert_context.h
@@ -0,0 +1,28 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#pragma once
+
+#include "bundled_fields_context.h"
+
+namespace search::memoryindex {
+
+/*
+ * Context used by an InvertTask to invert a set of document fields
+ * into corresponding field inverters or by a RemoveTask to remove
+ * documents from a set of field inverters.
+ *
+ * It is also used by DocumentInverter::pushDocuments() to execute
+ * PushTask at the proper time (i.e. when all related InvertTask /
+ * RemoveTask operations have completed).
+ */
+class InvertContext : public BundledFieldsContext
+{
+    std::vector<uint32_t> _pushers;
+public:
+    void add_pusher(uint32_t pusher_id);
+    InvertContext(vespalib::ISequencedTaskExecutor::ExecutorId id);
+    ~InvertContext();
+    const std::vector<uint32_t>& get_pushers() const noexcept { return _pushers; }
+};
+
+}